TCP/IP model
Communication between two programs running on
different terminals is possible because these programs
use the services of the application layer. At the same time,
Application layer protocols use
presentation and session layer services. These
The last two use the services of the protocols of the
transport layer, which depends on the correct
operation of network layer protocols. The
transmission of data over a link depends on the
link layer protocols. Finally, the data is
sent at the bit level according to the physical layer standard
corresponding to the communication link between a pair
of nodes.
All these concepts are very difficult to deal with, so
that your mission in this case is to explain how it is that two
programs executed on two different terminals
They can communicate using the OSI protocol stack.
Use the following diagram as the basis for your explanation.
Note that the diagram corresponds to the TCP/IP model, not to the
OR IF.
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